The majority of evaporators in industrial refrigeration service are aircooling plate-finned heat exchangers, but other common designs include: corrugated plate, plate-and-shell, scraped surface and others. This category will work for any of the heat exchanger types listed above. This tool has separate categories for shell-and-tube and plate-and-frame heat exchangers.
The refrigerant-side of evaporators for industrial refrigeration systems are usually configured in one of three ways: liquid overfed, flooded, or direct-expansion (DX). Evaporator manufactures do not catalog operating charge information for air-cooling evaporators, but this tool can help estimate the normal operating charge of refrigerant in evaporators.
Note: for gravity-flooded evaporators, the inventory of the surge drum itself is not included.
| Input Variable | Overfeed | Flooded | DX |
| Saturation Temperature |  | | - |
| Inlet Gauge Pressure | - | - | |
| Subcooling | | - | |
| Superheat | - | - | |
| Overfeed Ratio | | - | - |
| Evaporator Gauge Pressure | - | - | |
| Coil Volume | | | |
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